%I #7 Feb 15 2025 15:28:59
%S 1,24,1861,168661,16902651,1797062518,199090941069
%N Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1 X 6.
%Y Cf. A112389, A123762 - A123827, A123829 - A123849.
%K nonn,hard,changed
%O 1,2
%A _Søren Eilers_, Oct 29 2006